G2 Vendor Directory

Symmetry Tax Engine vs. OnPay

A side-by-side comparison based on G2 review data.

MetricSymmetry Tax Engine

by Symmetry

OnPay

by OnPay, Inc.

Overall rating5.04.8
Review count20422
Ease of use9.69.7
Ease of setup10.09.5
Quality of support9.89.6
Meets requirements9.99.8
NPS10090.865385
Small Business30.0%97.4%
Mid-Market25.0%2.6%
Enterprise45.0%0.0%
Total page views1131,097
Total LLM citations1,22012,610

Symmetry Tax Engine

The leading gross-to-net calculation software for payroll. The Symmetry Tax Engine® (STE) is a powerful gross-to-net calculation engine to build or enhance a payroll platform, embed payroll into an existing application, and increase compliance and accuracy. The Symmetry Tax Engine® accounts for federal, state, and local payroll taxes — both withholding and latent employer taxes — for over 7,400 taxing jurisdictions and U.S. territories. Employer taxes and multi-state processing are accounted for as well. STE covers all 50 states, U.S. territories including Puerto Rico, and Canada.

Pros

  • Easy Setup
  • Reliability
  • Time-saving
  • Payroll Ease
  • Comprehensive Features
  • Integrations

OnPay

OnPay is designed for business owners who want to spend more time running their business — and less time managing back-office tasks. This award-winning payroll and HR software helps small and mid-sized businesses save over 15 hours each month by automating time-consuming processes and simplifying workforce management. “It’s an easy, quick, mobile-friendly system that doesn’t require a steep learning curve,” according to Entrepreneur, and it is rated “Excellent” by PCMag.

Pros

  • Customer Support
  • Ease of Use
  • Payroll
  • Helpful
  • Payroll Ease
  • Onboarding